The Heras Mobile Noise Control Barrier is a fence that is particularly effective at reducing the noise at an event or building site, e.g. aggregates or other sound sources. It limits the nuisance for guests, staff, and local residents. The Noise Control Barrier is a fence with a padded sound-absorbing tarpaulin that reduces the volume of sound by an average of 17 dB. This fence is also sometimes called a sound barrier in the market.